<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><title>What Switch Metric Are You Monitoring</title><style></style></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1>Hello Rab,<o:p></o:p><o:p> </o:p>I monitor the following services on my Cisco Switches.<o:p></o:p><o:p> </o:p>Ping<o:p></o:p>Uplink status + bandwidth utilisation<o:p></o:p>CPU (Avg 5 mins)<o:p></o:p>Environment (FAN, PSU) <o:p></o:p>If my server was connected to the network as below: <o:p></o:p>Server1 => Switch1 => Switch2 => Localhost (Nagios)<o:p></o:p><o:p> </o:p>I would configure the parent/child relationship this way.<o:p></o:p><o:p> </o:p>Server1 Parent = Switch1 Switch1 Parent = Switch2<o:p></o:p>Switch2 Parent = Localhost If you do this you will end up with the Nagios network map looking like your network documentation. Also If switch2 does down Nagios will assume Switch1 and Server1 are also unavailable and will suppress notifications. I have also setup service dependencies so that all my switch as follows define servicedependency {<o:p></o:p> dependent_host_name HPK3044<o:p></o:p> dependent_service_description CPU 5 min average,Environmental monitoring,Link to HPD-LRE Bandwidth,Link to HPD-LRE Status,Link to HPKDC1 Bandwidth,Link to HPKDC1 Status,Vlan 1 Bandwidth,Vlan 1 Status<o:p></o:p> host_name HPK3044<o:p></o:p> service_description Ping<o:p></o:p> inherits_parent 1<o:p></o:p> execution_failure_criteria w,u,c<o:p></o:p> notification_failure_criteria w,u,c<o:p></o:p> dependency_period 24x7 This makes all the monitored services on the switch dependant on the switch being pingable. If the ping service is in the warning, critical or unknown state all the other services will not produce notifications. <o:p></o:p><o:p> </o:p><o:p> </o:p>Hope this helps Chris Macleod<o:p></o:p> <o:p></o:p><o:p> </o:p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>From: Robert Jackson [mailto:rab@walkermartyn.co.uk] Sent: 13 August 2010 10:20 To: nagios-users@lists.sourceforge.net Subject: [Nagios-users] What Switch Metric Are You Monitoring<o:p></o:p></div></div><o:p> </o:p>I’m currently on Nagios Core 3.2.1 and I’m just starting to setup monitoring of our network switches. Can someone share what switch metrics they are recording (and find most useful). Just now, I’m only registering PING and Uptime (through SMNP). Also how are you handling parent/child relationships for the switches/ports etc? Basically if a switch is down, then I would only want to receive and alert regarding this and not anything else related to the port or device connected to the port.<o:p></o:p>Regards,<o:p></o:p>Rab.<o:p></o:p>=====================================================<o:p></o:p>Robert Jackson Phone: +44 (0) 141 332 7999<o:p></o:p>IT Manager Fax: +44 (0) 141 331 2820<o:p></o:p>Walker Martyn Ltd<o:p></o:p>1 Park Circus Place Email: <a href="mailto:rab@walkermartyn.co.uk">rab@walkermartyn.co.uk</a><o:p></o:p>Glasgow G3 6AH, Scotland Web: <a href="http://www.walkermartyn.co.uk">http://www.walkermartyn.co.uk</a><o:p></o:p>=====================================================<o:p></o:p>************************************************************************ <o:p></o:p>The information in this internet E-mail is confidential and is intended solely for the addressee. Access, copying or re-use of information in it by anyone else is unauthorised. Any views or opinions presented are solely those of the author and do not necessarily represent those of Walker Martyn Ltd or any of its affiliates. If you are not the intended recipient please contact <a href="mailto:administrator@walkermartyn.co.uk">administrator@walkermartyn.co.uk</a>.<o:p></o:p>Walker Martyn Ltd, company number SC197533. Company is registered in Scotland and has its registered office at 1 Park Circus Place, Glasgow G3 6AH, UK.<o:p></o:p>**************************************************************** <o:p></o:p> ________________________________________________________________________ This e-mail has been scanned for all viruses by MessageLabs. TEG-IN<o:p></o:p></div> ________________________________________________________________________ This e-mail has been scanned for all viruses by Message Labs. Please enjoy our brands responsibly. www.drinkaware.co.uk The Edrington Group is a private limited company registered in Scotland (Registered Number SC 36374) with its Registered Office at 2500 Great Western Road, Glasgow, G15 6RW. ________________________________________________________________________ </body></html>